function open_win(type) {

  config = 'status=no,dependent=no,width=815,height=690,top=100,left=100';

  if (type == 'kc_5_DE') {
    win = window.open('https://ae.mapandguide.de/mga/reg_master/default.aspx?mgroup=AIRZTRWQND&mg=ecb8805a-4a05-4d19-a02a-3f74b2711358&lingua=DE','regwin',''+config+'');
  }
  if (type == 'fragen') {
    win = window.open('https://ae.mapandguide.de/mga_ae_faq/default.aspx?mgroup=AIRZTRWQND&lingua=DE&type=faq','qwin',''+config+'');
  }
  if (type == 'download') {
    win = window.open('https://ae.mapandguide.de/mga_ae_faq/default.aspx?mgroup=AIRZTRWQND&lingua=DE&type=down','dwin',''+config+'');
  }
  return false;
}